If we look at the pie, I wonder what is the pie share of amateur members (crunching at home) compared to professional ones (crunching at the office, company servers, desktops etc.)
For what I know Hypernova and trn-XS are in the amateur category, and if only them, then the ratio would be:

Amateur: 41.3%
Pro's : 58.7%

But others may be amateur which would improve the ratio.